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Finding the Fourth Proportional to 792.18, 1,094.45 and 606.42

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Solution

The fourth proportional to 792.18, 1,094.45 and 606.42 is: 837.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.18 : 1,094.45 = 606.42 : x
  2. Step 2: Convert to fraction form
    792.18/1,094.45 = 606.42/x
  3. Step 3: Cross multiply
    792.18x = 1,094.45 × 606.42
  4. Step 4: Simplify right side
    792.18x = 663,693.34
  5. Step 5: Solve for x
    x = 663,693.34/792.18
  6. Step 6: Final answer
    x = 837.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.